Backend Developer (Web3/Crypto/Java) [CONTRACT ROLE]

Company Description

MarsDevs is a remote-first, offshore digital product development company known for its commitment to quality, no-vendor-locking guarantee, and building long-lasting technical architectures. We specialize in creating MVPs, Mobile and Web Applications, and SaaS Products for early to growth stage startups, as well as vertical solutions for SMBs. Based in India, MarsDevs has delivered over 60 solutions in 10 countries across 12 industry verticals over the past 4 years. Our flexible and transparent engagement models ensure the best fit teams for each project, drawing from our in-house talent and extensive partnership network

About the Role : The ideal candidate should have strong backend development expertise, coupled with practical knowledge of Web3 and cryptocurrency ecosystems. You don't need to be a blockchain developer, but familiarity with wallets, deposits, withdrawals, and using crypto for payments is key.

Responsibilities

• Build, maintain, and scale backend services for the AI Signals platform.

• Integrate Web3 functionality, including wallet creation and crypto-based utilities.

• Collaborate with cross-functional teams to deliver secure and efficient solutions.

• Adapt quickly to project requirements and learn wallet integrations fast.Requirements

• 4+ years of backend development experience (Python/Node.js/Go preferred).

• Hands-on experience with crypto wallets (depositing, withdrawing, transactions).

• Familiarity with blockchain utilities and crypto-based service payments.

• Strong understanding of APIs, microservices, and cloud deployment.

• Quick learner with the ability to adapt to Web3-specific requirements.

Nice to Have

• Experience building HD wallets.

• Previous work in Web3, DeFi, or blockchain-related projects.

NOTE : This is a Contract Role for minimum 2 months.